DCT File Format - Interference Matrix File Formats

2.13.2 3 Knife-edge Deygout Method

2. Local correction for each measured value

2.16 File Formats

2.16.3 Interference Matrix File Formats

2.16.3.3 DCT File Format

The .dct file is divided into two parts. The first part is a header used for format identification. It must start with and contain the following lines:

The second part provides information about transmitters taken into account in AFP. The lines after the header are considered as comments if they start with "#". If not, they must have the following format:

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

# Remark: C/I results do not incorporate power offset values.

# Fields are:

##---#---#---#---#---#

##---#---#---#---#---#

# Warning, The parameter settings of this header can be wrong if

# the "export" is performed following an "import". They

# are correct when the "export" follows a "calculate".

# Service Zone Type is "Best signal level of the highest priority HCS layer".

# Margin is 5.

# Cell edge coverage probability 75%.

# Traffic spreading was Uniform

##---#

1 2 TCH_INNER 8 1 9 0.944 10 0.904 11 0.892 14 0.844 15 0.832 16 0.812 17 0.752 22 0.316 25 0.292

1 2 BCCH,TCH^a 8 1

a. If the TCH and BCCH histograms are the same, they are not repeated. A single record indicates that the histograms belong to TCH and BCCH both.

9 0.944 10 .904 13 0.872 14 0.84 17 0.772

# Calculation Results Dictionary File.

# Version 1.1, Tab separated format. Commented lines start with #.

The last four columns describe the interference matrix scope. One transmitter per line is described separated with a tab character.

Sample

2.16.3.4 IM0 Format (One Histogram per Line)

This file contains one histogram per line for each interfered/interfering subcell pair. The histogram is a list of C/I values with associated probabilities.

The .im0 file consists of two parts. The first part is a header used for format identification. It must start with and contain the following lines:

The second part details interference histogram of each interfered subcell-interferer subcell pair. The lines after the header are considered as comments if they start with "#". If not, they must have the following format:

The 4 tab-separated columns are defined in the table below:

Column Name Type Description

Column1 Transmitter name Text Name of the transmitter

Column2 Transmitter Identifier Integer Identification number of the transmitter

Column3 BCCH during calculation Integer BCCH used in calculations

Column4 BSIC during calculation Integer BSIC used in calculations

Column5 % of vic’ coverage Float Percentage of overlap of the victim service area

Column6 % of int’ coverage Float Percentage of overlap of the interferer service area

# Calculation Results Dictionary File.

# Version 2.1, Tab separated format. Commented lines start with #.

# Fields are:

##---#---#---#---#---#---#

##---#---#---#---#---#---#

# Warning, The parameter settings of this header can be wrong if

# the "export" is performed following an "import". They

# are correct when the "export" follows a "calculate".

# Service Zone Type is "Best signal level per HCS layer".

# Margin is 5.

# Cell edge coverage probability is 75%.

# Traffic spreading was Uniform (percentage of interfered area)

##---#

Site0_0 1 -1 -1 100 100 Site0_1 2 -1 -1 100 100 Site0_2 3 -1 -1 100 100 Site1_0 4 -1 -1 100 100 Site1_1 5 -1 -1 100 100 Site1_2 6 -1 -1 100 100 Site2_0 7 -1 -1 100 100 Site2_1 8 -1 -1 100 100

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

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Sample

2.16.3.5 IM1 Format (One Value per Line, TX Name Repeated)

This file contains one C/I threshold and probability pair value per line for each interfered/interfering subcell pair. The histogram is a list of C/I values with associated probabilities.

The .im1 file consists of two parts. The first part is a header used for format identification. It must start with and contain the following lines:

Column Name Description

Column1 Interfered transmitter Name of the interfered transmitter.

Column2 Interfering transmitter Name of the interferer transmitter.

Column3 Interfered TRX type Interfered subcell. In order to save storage, all subcells with no power offset are not duplicated (e.g. BCCH, TCH).

Column4 C/I probability C/I value and the probability associated to this value separated by a space character. This entry cannot be null.

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

# Remark: C/I results do not incorporate power offset values.

# Fields are:

#---#Transmitter Interferer TRX type {C/I Probability} values

#---#

# Warning, The parameter settings of this header can be wrong if

# the "export" is performed following an "import". They

# are correct when the "export" follows a "calculate".

# Service Zone Type is "Best signal level of the highest priority HCS layer".

# Margin is 5.

# Cell edge coverage probability 75%.

# Traffic spreading was Uniform

##---#

Site0_2 Site0_1 BCCH,TCH-10 1 -9 0.996 -6 0.976 -4 0.964 -1 0.936 0 0.932 1 0.924 4 0.896 7 0.864 8 0.848 9 0.832 10 0.824 11 0.804 14 0.712 17 0.66 Site0_2 Site0_3 BCCH,TCH-10 1 -9 0.996 -6 0.976 -4 0.972 -1 0.948

0 0.94 1 0.928 4 0.896 7 0.856 8 0.84 11 0.772 13 0.688 14 0.636 15 0.608 18 0.556 Site0_3 Site0_1 BCCH,TCH-10 1 -9 0.996 -6 0.98 -3 0.948 0 0.932

1 0.924 4 0.892 7 0.852 8 0.832 9 0.816 10 0.784 11 0.764 14 0.644 15 0.616 18 0.564 Site0_3 Site0_2 BCCH,TCH-9 1 -6 0.972 -3 0.964 -2 0.96 0 0.94

1 0.932 4 0.904 7 0.876 8 0.86 9 0.844 11 0.804 13 0.744 14 0.716 15 0.692 18 0.644

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

The 5 tab-separated columns are defined in the table below:

Sample

2.16.3.6 IM2 Format (Co- and Adjacent-channel Probabilities)

IM2 files contain co-channel and adjacent-channel interference probabilities for each interfered transmitter – interfering transmitter pair. In GSM, there is only one set of values for all the subcells of the interfered transmitter. Each line must have the following format:

Column Name Description

Column1 Interfered transmitter Name of the interfered transmitter.

Column2 Interfering transmitter Name of the interferer transmitter.

Column3 Interfered TRX type Interfered subcell. In order to save storage, all subcells with no power offset are not duplicated (e.g. BCCH, TCH).

Column4 C/I threshold C/I value. This column cannot be null.

Column5 Probability C/I > Threshold Probability to have C/I the value specified in column 4 (C/I threshold). This field must not be empty.

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

# Remark: C/I results do not incorporate power offset values.

# Fields are:

#---#Transmitter Interferer TRX type C/I Probability

#---#

# Warning, The parameter settings of this header can be wrong if

# the "export" is performed following an "import". They

# are correct when the "export" follows a "calculate".

# Service Zone Type is "Best signal level of the highest priority HCS layer".

# Margin is 5.

# Cell edge coverage probability 75%.

# Traffic spreading was Uniform

##---#

Site0_2 Site0_1 BCCH,TCH -10 1 Site0_2 Site0_1 BCCH,TCH -9 0.996 Site0_2 Site0_1 BCCH,TCH -6 0.976 Site0_2 Site0_1 BCCH,TCH -4 0.964 Site0_2 Site0_1 BCCH,TCH -1 0.936 Site0_2 Site0_1 BCCH,TCH 0 0.932 Site0_2 Site0_1 BCCH,TCH 1 0.924 Site0_2 Site0_1 BCCH,TCH 4 0.896 Site0_2 Site0_1 BCCH,TCH 7 0.864 Site0_2 Site0_1 BCCH,TCH 8 0.848 Site0_2 Site0_1 BCCH,TCH 9 0.832 Site0_2 Site0_1 BCCH,TCH 10 0.824 ...

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Where the separator (<SEP>) can either be a tab or a semicolon.

The four columns are defined in the table below:

Sample

The columns in the sample above are separated with a tab. These columns can also be separated with a semilcolon:

2.16.4 "Per Transmitter" Prediction File Format

When a coverage prediction is calculated by value intervals it is stored externally, i.e., outside the ATL file. A corresponding

’<doc_name>\{<GUID>}’ folder is actually created where the ATL document is located, as soon as the latter is saved.

The calculation of the coverage prediction is either global or "per transmitter".

• When the calculation is global, the results are stored in two files for the entire prediction: one HDR file and one BIL file (both identified by the prediction name).

• When a calculation is "per transmitter", one HDR file and one BIL file are created for each transmitter in the prediction (both identified by the transmitter’s name). In some "per transmitter" predictions, an additional DBF file is created for the entire prediction (identified by the prediction name). The DBF file contains information on each transmitter and a pointer to each transmitter’s specific HDR and BIL files.

In LTE, when a Cell Identifier Collision Zones (DL) prediction is calculated by value intervals with the display type set

"No. of interferers per cell", the HDR file and the BIL file are created for each cell in the prediction (both identified by the cell’s name).

Column Name Description

Column1 Interfered transmitter Name of the interfered transmitter

Column2 Interfering transmitter Name of the interferer transmitter

Column3 Co-channel probability Co-channel interference probability

Column4 Adjacent-channel probability Adjacent channel interference probability

# Calculation Results Data File.

# Version 1.1, Tab separated format. Commented lines start with #.

# Remark: C/I results do not incorporate power offset values.

# Fields are:

#---#Transmitter Interferer Co-channel Adjacent channel

#---#

# Warning, The parameter settings of this header can be wrong if

# the "export" is performed following an "import". They

# are correct when the "export" follows a "calculate".

# Service Zone Type is "Best signal level of the highest priority HCS layer".

# Margin is 5.

# Cell edge coverage probability 75%.

# Traffic spreading was Uniform

##---#

Site0_2 Site0_1 0.226667 0.024 Site0_2 Site0_3 0.27 0.024 Site0_3 Site0_1 0.276 0.02 Site0_3 Site0_2 0.226 0.028

Site0_2;Site0_1;0.226667;0.024 Site0_2;Site0_3;0.27;0.024 Site0_3;Site0_1;0.276;0.02 Site0_3;Site0_2;0.226;0.028

The format and the content of the DBF file is described here.

2.16.4.1 <per_transmitter_prediction>.dbf File Format

The format of ‘<per_transmitter_prediction>.dbf’ files is identical to the format described in "Pathloss.dbf File Format" on page 107.

2.16.4.2 <per_transmitter_prediction>.dbf File Contents

The ‘<per_transmitter_prediction>.dbf’ files generated in specific ’{<GUID>}’ folders provide information that is needed to check the validity of each "per transmitter" prediction> calculated by value intervals.

In document Atoll 3.3.0 Technical Reference Guide.pdf (Page 113-118)